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Finding the Fourth Proportional to 622,602.60, 933,320.70 and 487,591.80

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Solution

The fourth proportional to 622,602.60, 933,320.70 and 487,591.80 is: 730,930.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,602.60 : 933,320.70 = 487,591.80 : x
  2. Step 2: Convert to fraction form
    622,602.60/933,320.70 = 487,591.80/x
  3. Step 3: Cross multiply
    622,602.60x = 933,320.70 × 487,591.80
  4. Step 4: Simplify right side
    622,602.60x = 455,079,520,090.26
  5. Step 5: Solve for x
    x = 455,079,520,090.26/622,602.60
  6. Step 6: Final answer
    x = 730,930.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.